Hi Ian. Both of these vehicles, in the 1960's, up to about 1966/68, would have been painted semi-gloss, R.A.F. Blue, with yellow top sections. After that, the colour changed to NATO Green. Most R.A.F. vehicles that would move on the 'air' side of an airfield, would have a yellow stripe down the side on the NATO Green painted versions.
Your Lightning, if it's the one you posted pics of the other day,would have been serviced by a green tanker. The Vulcan, if it's in green/grey 'wrap around' cam, would be the same; if in green/grey with the white, or Light Aircraft Grey undersides, would fall into the transition period. From what I remember of the pics you posted of the Vulcan, the tanker would be NATO Green. I might have pics of the relevant vehicles, plus scale drawings; 1/72nd scale, but you can enlarge to suit. I'll have a look over the weekend, and e-mail you with anything relevant.
Terry.